car sputtring and backfiring
car sputtring and backfiring I have a 98 camaro ls1 my mods are lid,ported t/b and longtubes and catted y.When i drive the car normal its fine but if its at a lower rpm range like 1500 and i give it a good amount of throttle it will start hickuping and popping from the exhaust.And if i go wot it does the same thing popping from exhaust and no pull to it, my problem is im not throwing any ses codes so i dont really know what to do i changed 02 sensors and it did not help so if you have any info I would appreciate it THANKS...
dont think you would need a tune with what mods you have, seems that it is a fuel issues swap out the filter and see how it does. It is only a couple dollars and takes about ten minutes to do. Does it act up all the time when WOT? Probably just something simple that a good tune up will cure.
I will try to change fuel filter tommorow also how can i check fuel pressure on these cars.I have not got the car tuned yet, thanks for the input guys i will let you know after i change the filter i hope this is it so it sounds more like fuel then spark to you guys...
Screw the guage into the schrader valve.. Which is located on the front of the driver side fuel rail.
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im having an issue like this as well, when you go wot its fine once the rpms go over say 3000. but its when you in lets say 6th crusing at 60mph and you give it 60% or more it acts up.
I was wondering the same thing. It may also be the lack of a tune since either:
1. your O2 sensors are not giving the reading the PCM wants and it's trying to compensate
2. if you removed the O2 sensors then the PCM is looking for them and can't find them and is trying to compensate
1. your O2 sensors are not giving the reading the PCM wants and it's trying to compensate
2. if you removed the O2 sensors then the PCM is looking for them and can't find them and is trying to compensate
Do you hear any hissing or smell fuel? I installed LT's and my EGR pipe right behind the throttle body was loose...it kept sputtering and popping like you described and wouldn't get enough power. All I did to fix it was pull the pipe out and resettled the o-ring on the pipe, tightened it up and it instantly fixed it.
Do you hear any hissing or smell fuel? I installed LT's and my EGR pipe right behind the throttle body was loose...it kept sputtering and popping like you described and wouldn't get enough power. All I did to fix it was pull the pipe out and resettled the o-ring on the pipe, tightened it up and it instantly fixed it.
I must comment on your user name......WTF!?
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Joined: Sep 2007
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From: Ormond Beach, Florida
i had the same problem, but mine would backfire and die and only once or twice did the ses light come on after a while of driving it...neways i had a bad crankshaft angle sensor, changed it and everything was fine! o i changed my fuel filter and spark plugs to and it did nothing at all
after i took my car to the track one night i started getting very shitty backfires and sputtering everywhere i drove, a week later i found out that my passenger side spark plug wire was not fully connected, check all of your connections, maybe that will help
